Scicon makes some killer saddle bags in all shapes and sizes for everyone from the over-packer to the weight weenie. The Scicon Round Medium 700 fits right into the middle ground. It gives you plenty of room for the essentials and then some without looking like you have an overseas steamer trunk strapped to your saddle.

Durable Cordura nylon construction stands up to the abuse of long distance riding

Water-resistant zipper helps keep your stuff nice and dry

Contact System attachment uses a clamp that attaches to your saddle rails, and a quick release clip on the bag, so mounting and removing the bag is a breeze

Bag worked well except for the time I switched bikes and the next day the back mounting clip broke and I lost the bag. Not a very strong design to hold the plastic mounting clip to the bag itself. I would not buy again. Lost spare tubes and tools when it failed.

I keep a spare tube, couple of CO2's, Multi-Tool and can still fit my phone and wallet. Doesn't look bulky and on rough surfaces doesn't make too much noise. Can take it on and off in a snap. For the price I;m quite happy.